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235 earthquakes globally today

Earthquakes Near Johannesburg, California 93528 Today

Live data from USGS · Monitoring ZIP code 93528 Updated just now

50 tiny quakes nearby. Too small to feel. Completely normal background activity.

📱 Get earthquake alerts — download the app for real-time notifications

Recent Earthquakes Near Johannesburg, California

50 earthquakes have been recorded within 250 miles of Johannesburg, California in the past 24 hours. Alertra monitors seismic activity near ZIP code 93528 using live data from the U.S. Geological Survey (USGS), updated every 60 seconds. Whether you felt shaking or are checking if an earthquake just happened near Johannesburg, this earthquake watch dashboard provides real-time magnitude data, an interactive seismic map, and earthquake history going back 15+ years.

Earthquake Alerts for Johannesburg, California

Alertra delivers real-time earthquake alerts for Johannesburg and the surrounding 93528 area. When seismic activity is detected nearby, push notifications are sent within 60 seconds — no manual earthquake watch required.

Coming soon! We're working on bringing monitoring to Alertra.

📊 Earthquake Watch — Johannesburg

Live seismic risk assessment · Updated every 60 seconds from USGS

Current Threat Level
All Quiet
LowModerateHigh
Threat score: 14 / 100

Some seismic activity near Johannesburg. Most too small to feel.

Earthquakes nearby 50
Closest to you M1.6, 6 mi
Strongest in last 24hr M2.4, Rarely felt
Last felt M4.0+ 17 days ago
Tracking Area
Johannesburg
LIVE EARTHQUAKES
Found 50 in region
Major (6.0+)
Moderate (4.0 - 5.9)
Minor (Below 4.0)
Your Location

🌍 Recent Earthquakes Near Johannesburg

Past 24 hours within 250 miles · Source: USGS

Showing events within 250 miles · Past 24 hours · Source: USGS
Sort by:
MagnitudeWhat You'd FeelLocationDistanceWhen
M2.4 		Rarely felt 18 km WSW of Johannesburg, CA 11 mi 7:27 PM Details →
M2.1 		Rarely felt 4 km SSW of Palomar Observatory, CA 148 mi 3:09 AM Details →
M2.0 		Rarely felt 12 km SSW of Borrego Springs, CA 167 mi 2:24 PM Details →
M2.0 		Rarely felt 4 km W of San Juan Bautista, CA 242 mi 6:16 PM Details →
M1.9 		Not felt 15 km NE of Lebec, CA 69 mi 4:47 AM Details →
M1.8 		Not felt 1 km N of Hacienda Heights, CA 97 mi 6:57 PM Details →
M1.7 		Not felt 2 km NNE of Colton, CA 91 mi 5:19 AM Details →
M1.7 		Not felt 7 km E of Phelan, CA 65 mi 10:20 AM Details →
M1.7 		Not felt 26 km SSW of Ocotillo Wells, CA 185 mi 7:03 AM Details →
M1.6 		Not felt 30 km SSW of Alamo, Nevada 178 mi 8:52 AM Details →
M1.6 		Not felt 11 km SSW of Tres Pinos, CA 227 mi 8:50 AM Details →
M1.6 		Not felt 27 km SSE of Caliente, Nevada 227 mi 3:09 AM Details →
M1.6 		Not felt 17 km SSW of Pine Mountain Club, CA 100 mi 1:34 PM Details →
M1.6 		Not felt 11 km WSW of Johannesburg, CA 6 mi 7:27 PM Details →
M1.4 		Not felt 18 km WSW of Johannesburg, CA 11 mi 6:45 PM Details →
M1.3 		Not felt 3 km SE of Home Gardens, CA 105 mi 8:00 PM Details →
M1.2 		Not felt 26 km SSW of Ocotillo Wells, CA 185 mi 6:50 AM Details →
M1.2 		Not felt 7 km SSW of Mojave, CA 40 mi 6:59 PM Details →
M1.1 		Not felt 9 km E of Cabazon, CA 114 mi 8:06 AM Details →
M1.1 		Not felt 9 km S of Warner Springs, CA 161 mi 9:25 PM Details →
M1.1 		Not felt 18 km WSW of Johannesburg, CA 11 mi 9:20 PM Details →
M1.1 		Not felt 14 km SSW of Searles Valley, CA 22 mi 1:25 PM Details →
M1.1 		Not felt 11 km S of Olancha, CA 60 mi 6:25 AM Details →
M1.0 		Not felt 3 km ENE of Moreno Valley, CA 103 mi 10:34 AM Details →
M0.9 		Not felt 8 km SSW of Lytle Creek, CA 81 mi 8:35 AM Details →
M0.9 		Not felt 6 km SE of Loma Linda, CA 97 mi 1:35 AM Details →
M0.9 		Not felt 1 km SSE of Loma Linda, CA 95 mi 4:04 PM Details →
M0.9 		Not felt 9 km SSW of Idyllwild, CA 128 mi 1:05 AM Details →
M0.9 		Not felt 7 km SSW of Redlands, CA 98 mi 8:58 AM Details →
M0.8 		Not felt 2 km SE of Redlands, CA 96 mi 7:58 AM Details →
M0.8 		Not felt 11 km SSW of Borrego Springs, CA 167 mi 1:51 PM Details →
M0.8 		Not felt 22 km ESE of Ridgecrest, CA 16 mi 3:22 AM Details →
M0.8 		Not felt 7 km SSE of Redlands, CA 99 mi 9:54 AM Details →
M0.8 		Not felt 19 km ESE of Anza, CA 145 mi 2:15 AM Details →
M0.8 		Not felt 3 km SE of Redlands, CA 96 mi 9:39 AM Details →
M0.8 		Not felt 9 km N of Borrego Springs, CA 158 mi 3:39 AM Details →
M0.8 		Not felt 8 km ESE of Valle Vista, CA 124 mi 3:27 AM Details →
M0.7 		Not felt 26 km SSW of Ocotillo Wells, CA 185 mi 7:10 AM Details →
M0.7 		Not felt 6 km SE of Loma Linda, CA 97 mi 6:11 AM Details →
M0.7 		Not felt 5 km SSW of Redlands, CA 97 mi 11:41 AM Details →
M0.6 		Not felt 15 km SSW of Searles Valley, CA 21 mi 7:52 AM Details →
M0.6 		Not felt 9 km SSE of Gorman, CA 80 mi 4:13 PM Details →
M0.6 		Not felt 2 km NE of Palomar Observatory, CA 146 mi 3:49 PM Details →
M0.6 		Not felt 5 km NNE of Lake Henshaw, CA 153 mi 8:19 AM Details →
M0.5 		Not felt 11 km ESE of Anza, CA 143 mi 4:57 AM Details →
M0.4 		Not felt 25 km SSW of Ocotillo Wells, CA 185 mi 7:30 AM Details →
M0.4 		Not felt 17 km ESE of Anza, CA 145 mi 4:49 AM Details →
M0.4 		Not felt 4 km WNW of Borrego Springs, CA 161 mi 11:29 AM Details →
M0.3 		Not felt 8 km NNE of Beaumont, CA 102 mi 12:50 PM Details →
M0.0 		Not felt 10 km SE of Winchester, CA 124 mi 10:03 AM Details →

📈 Earthquake History — Johannesburg

Since 2010 · M2.5+ · 250 mi radius

Johannesburg has recorded 15,027 earthquakes of magnitude 2.5 or greater within 250 miles since 2010. The largest was a M7.1 on Jul 6, 2019, located Ridgecrest Earthquake Sequence. On average, the area experiences approximately 1281 notable seismic events per year.

M2.5+ in Past 7 Days

Fri
0
—
Sat
0
—
Sun
1
MAX M2.7
Mon
2
MAX M3.6
Tue
0
—
Wed
4
MAX M3.6
Thu
0
—
Since 2010 · M2.5+ · 250 mi

Yearly Activity · 15027 events

Past Week
View:
M2.5–4 (bars)
M4+ (line, right axis)
Yearly Earthquake Activity by Magnitude01k2k3k4k050100150'10'13'16'19'22'252010: 110 (M2.5–4), 4 (M4+)2011: 765 (M2.5–4), 28 (M4+)2012: 641 (M2.5–4), 25 (M4+)2013: 558 (M2.5–4), 16 (M4+)2014: 639 (M2.5–4), 18 (M4+)2015: 487 (M2.5–4), 13 (M4+)2016: 667 (M2.5–4), 23 (M4+)2017: 623 (M2.5–4), 8 (M4+)2018: 486 (M2.5–4), 10 (M4+)2019: 3,214 (M2.5–4), 136 (M4+)2020: 2,319 (M2.5–4), 101 (M4+)2021: 1,136 (M2.5–4), 38 (M4+)2022: 619 (M2.5–4), 18 (M4+)2023: 575 (M2.5–4), 17 (M4+)2024: 705 (M2.5–4), 37 (M4+)2025: 598 (M2.5–4), 13 (M4+)2026: 367 (M2.5–4), 13 (M4+)
Event count (bars)
Seismic energy index (line)
Yearly Seismic Energy Release01k2k3k4k020.0B40.0B60.0B'10'13'16'19'22'252010: 114 events, Energy: 18.6M2011: 793 events, Energy: 100.3M2012: 666 events, Energy: 435.3M2013: 574 events, Energy: 121.2M2014: 657 events, Energy: 116.4M2015: 500 events, Energy: 152.8M2016: 690 events, Energy: 852.4M2017: 631 events, Energy: 45.4M2018: 496 events, Energy: 139.3M2019: 3,350 events, Energy: 49.9B2020: 2,420 events, Energy: 7.2B2021: 1,174 events, Energy: 1.3B2022: 637 events, Energy: 101.4M2023: 592 events, Energy: 127.5M2024: 742 events, Energy: 280.6M2025: 611 events, Energy: 117.0M2026: 380 events, Energy: 83.8M
Largest Recorded
M7.1
Ridgecrest Earthquake Sequence
Jul 6, 2019
Avg Noticeable / Year
103.3
Estimated felt (MMI ≥ II)

Strongest Recorded Earthquakes

M7.1 Jul 6, 2019
Ridgecrest Earthquake Sequence
M6.5 May 15, 2020
Monte Cristo Range, NV Earthquake
M6.4 Jul 4, 2019
Ridgecrest Earthquake Sequence
M6.0 Aug 24, 2014
The 2014 South Napa, California Earthquake
M6.0 Jul 8, 2021
Antelope Valley, CA
M5.8 Jun 24, 2020
18km SSE of Lone Pine, CA
📊 Looking for detailed historical data?

🛡️ Earthquake Safety — Johannesburg, California

What Johannesburg residents should know before, during, and after an earthquake

🏠 Step 1

Before: Secure Your Space

Bolt heavy furniture to walls. Keep an emergency kit within arm's reach of where you sleep. Know your exits.

🛡️ Step 2

During: Drop, Cover, Hold On

Drop to your hands and knees. Take cover under sturdy furniture. Hold on until the shaking stops. Stay away from windows.

🚪 Step 3

After: Check and Evacuate

Check for injuries and damage. If you smell gas, leave immediately and call 911. Expect aftershocks.

72-Hour Emergency Kit

✓ 1 gallon of water per person per day
✓ Non-perishable food (3-day supply)
✓ Battery-powered NOAA weather radio
✓ Flashlight and extra batteries
✓ First aid kit
✓ Whistle to signal for help
✓ N95 dust masks
✓ Plastic sheeting and duct tape
✓ Wrench or pliers to turn off utilities
✓ Manual can opener

Notable US Seismic History

1994 Northridge, CA
M6.7
57 fatalities, $50B in damage. One of the costliest US natural disasters.
2011 Virginia
M5.8
Felt across 22 states. The most widely felt earthquake in US history.
2018 Anchorage, AK
M7.1
Major infrastructure damage across south-central Alaska.

📍 Nearby Earthquake Monitoring

Cities near Johannesburg with live tracking

🔔 Get earthquake alerts for Johannesburg
Alertra monitors live data 24/7 and sends push notifications the moment a earthquake is detected near you.

🏢 About Alertra

Alertra is an earthquake monitoring platform built by a team of engineers in Arizona focused on natural disaster safety technology. We provide real-time earthquake alerts and risk assessments to help communities prepare before disaster strikes.

Alertra ingests real-time seismic data from the U.S. Geological Survey (USGS) and combines it with over 15 years of legacy earthquake records to build localized risk models for communities like Johannesburg. Our threat scores, historical trend charts, and proximity alerts are all derived from this data — updated every 60 seconds.

Earthquake FAQ — Johannesburg, California

Was there an earthquake in Johannesburg today?

50 tiny quakes nearby. Too small to feel. Completely normal background activity. This page shows all earthquakes detected within 250 miles of Johannesburg in the past 24 hours, updated every 60 seconds from USGS.

Did an earthquake just happen near Johannesburg?

Check the live earthquake table above for the most recent seismic events near 93528. Alertra detects earthquakes right now as they happen and can send you instant earthquake alerts for Johannesburg.

What is the earthquake history for Johannesburg, California?

Alertra tracks USGS seismic records going back 15+ years for the Johannesburg area. View the historical trends chart above to see yearly earthquake frequency and the largest recorded event near 93528.

How do I get earthquake alerts for Johannesburg?

Download the Alertra app to receive push notifications within 60 seconds of any earthquake detected near 93528. Alertra monitors USGS seismic data 24/7 — no manual earthquake watch required.

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